Except, correct me if this is wrong, but he wasn't even convicted of money laundering, let alone the underlying crimes you suggest he was launder the proceeds of. It was simply for failing to register / setup an appropriate AML system. Whether any ML occurred, by whom, and in relation to what... are outstanding questions. If he had done all that and all they got him on was a 4-month technicality, that tends to suggest he was probably innocent (or the investigation was inept).